/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package controlador.ventas;

import controlador.ServletHelper;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;
import modelo.ProductosMasVendidos;
import persistencia.VentasBean;

/**
 *
 * @author Felipe
 */
@WebServlet(name = "MasVendidos", urlPatterns = {"/MasVendidos"})
public class MasVendidos extends HttpServlet {

    @Resource(name = "jdbc/HOLAJDBC")
    private DataSource ds;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");

        PrintWriter out = response.getWriter();
        Connection conexion = null;
        HttpSession session = request.getSession();
        session.removeAttribute("Mensaje");
        boolean condi = ServletHelper.validarAdmin(request, response);
        if (condi) {
            try {
                conexion = ds.getConnection();
                VentasBean bean = new VentasBean(conexion);

                String fechaIni = (String) request.getParameter("FECHA_INI");
                //SimpleDateFormat fechaD = new SimpleDateFormat("dd-MM-yyyy");
                SimpleDateFormat fechaD = new SimpleDateFormat("yyyy-MM-dd");
                String fechaFin = (String) request.getParameter("FECHA_FIN");
                Date fechaI = null;
                Date fechaF = null;
                if(fechaIni != null){ 
                fechaI = fechaD.parse(fechaIni);
                fechaF = fechaD.parse(fechaFin);
                }

                Collection<ProductosMasVendidos> lista;
                if (fechaI != null && fechaF != null) {

                    lista = bean.masVendidos(fechaI, fechaF);
                } else {
                    Date fecha = new Date();
                    Calendar cale = Calendar.getInstance();
                    cale.add(Calendar.MONTH, -1);
                    Date fechaIn = cale.getTime();
                    lista = bean.masVendidos(fechaIn, fecha);
                }
                session.setAttribute("lista", lista);
                request.getRequestDispatcher("/Admin/Informes/ProductosMasVendidos.jsp").forward(request, response);
                session.setAttribute("Mensaje", "");
            } catch (SQLException ex) {
                Logger.getLogger(AgregarProductoVenta.class.getName()).log(Level.SEVERE,
                        "No se pudo obtener la conexión a la base de datos", ex);
            } catch (ParseException ex) {
                Logger.getLogger(MasVendidos.class.getName()).log(Level.SEVERE, null, ex);
            } finally {
                out.close();
                try {
                    conexion.close();
                } catch (SQLException ex) {
                }
            }
        }
    }
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
